1. College of Animal Science and Technology, Northwest A&F University, Yangling, China
2. Department of Basic Science, College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
3. Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
4. B.D.S, Dental Department, Saudi Arabia
5. MCH - Arar, Saudi Arabia
6. Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
7. National Beef Cattle Improvement Center, Yangling, China